package com.atguigu.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.atguigu.oss.service.OssService;
import com.atguigu.oss.utils.ConstantPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {

    /**
     * 上传头像到oss
     *
     * @param file
     * @return
     */
    @Override
    public String uploadFileAvatar(MultipartFile file) {

        // 工具类获取值
        String endpoint = ConstantPropertiesUtils.END_POINT;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;

        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

        try {
            // 获取上传文件输入流
            InputStream inputStream = file.getInputStream();

            // 获取文件名称
            String fileName = file.getOriginalFilename();

            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName = uuid + fileName;

            String datePath = new DateTime().toString("yyyy/MM/dd");
            fileName = datePath + "/" + fileName;

            // 调用oss方法实现上传
            // 第一个参数：Bucket名称
            // 第二个参数：上传到oss文件路径和文件名称
            // 第三个参数：上传文件输入流
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            String url = "http://" + bucketName + "." + endpoint + "/" + fileName;
            return url;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}
